Grenade



J. M. KING Dec. 7, v1937.

GRENADE Filed Sept. 30, 1935 Atmrme Patented Dec. 7, 1937 UNITED STATES PATENT OFFICE 2 Claims.

(Granted under the act of March 3, 1883, as amended April 30, 1928; 370 O. G. 757) The invention described herein may be manufactured and used by or for the Governmentl for governmental purposes, without the payment to me of any royalty thereon.

This invention relates to a grenade.

The purpose of the invention is to provide a combination hand and rifle grenade having separate fuses for appropriate periods of delay in functioning.

A further object is to provide a combination fuse Which is of simple and inexpensive structure and which may be easily and quickly adapted for either type of functioning.

A preferred embodiment of the invention is illustrated in the accompanying drawing which is a longitudinal sectional View.

The grenade comprises a body 5 having a smooth outer surface and a scored inner surface to control fragmentation. The body contains a bursting charge E which is introduced through an opening 'l in the side wall, the opening being closed by a threaded plug 8.

The lower end of the body is formed with an inwardly disposed nipple 9 which has an aperture I that is coaxial with a threaded aperture Il in the upper end of the body. A fuse head I2 secured in the aperture Il and extending within the body carries on its inner end a tube I3 which contains a detonator Ill.

A fuse I5 having a burning time appropriate for a hand grenade, is carried by the fuse head and extends into the tube I3. A similar fuse I8 having a burning time appropriate for a rifle grenade, is carried by the lower end of the tube I3 and extends through the aperture ID in the nipple 9 and into the socket il formed by the nipple. The lower end of the fuse I5 is disposed in a central opening i8 in a plug I9 which is threaded in the socket ll and retains packing around the fuse. A cap 2l of nitrocellulose is placed over the head of the plug and sealed in place by cement 22.

A plug 23 in the fuse head is functioned by a conventional ring mechanism consisting of a pivoted striker 24 which is held in cocked position against the action of its spring 25 by means of a lever 26. The lever is mounted on the fuse 5 head and is normally held by a pin 2l having a pull-ring 23 and passing through the lever and through apertures 29 in the fuse head.

When the grenade is to be thrown by hand, the pin 2l is removed and the lever held in l0 place by the hand of the thrower as is Well understood in the art. In flight the striker 25 throws oii the lever and lires the primer.

When the grenade is to be used in a rie or discharger, the pin 2l is transferred to aper- 15 tures 38 in the fuse head. In this position the pin serves to restrain the striker but permits removal of the lever. The grenade is projected by means of the gases from a propellent charge, the gases also serving to ignite the cap 2| and the fuse I5.

I claim:

1. In a grenade including a body having coaxial apertures in opposite ends, a fuse unit comprising a fuse head mounted in one of the aper- 2,- tures and extending into the body, a tube on the inner end of the fuse head, a detonator in the tube, a rst time fuse in the fuse head leading to the detonator, a second time fuse carried by the end of the tube and extending through the 30 other aperture in the body, and a firing mechanism carried by the fuse head for igniting the first time fuse.

2. A combination hand and rie grenade including a body, a fuse head on the body, a piv- 3,- oted striker on the fuse head, a lever whereby the striker is held in cocked position, a pin insertable in one position in the fuse head to indirectly hold the striker by engaging the lever and insertable in another position to directly engage the striker when the lever is removed.

JOHN M. KING. 

